A Compton area man brought into St. Mary’s jail this month to serve 10 days on an assault charge wanted to make a deposit into his commissary account, court papers allege, with what the detention center’s staff determined was a counterfeit $20 bill.

Darious Anthony Jones, 21, was charged this week through a summons with possessing counterfeit U.S. currency Aug. 8 with unlawful intent. Jones was ordered earlier that day to serve the active 10-day sentence, online court records state, from his guilty plea to an offense last January of second-degree assault.

“When compared with a [real] U.S. $20, the counterfeit [bill] was substantially smaller in size and made from a thin paper,” according to a charges application filed by St. Mary’s sheriff’s deputy John Davis.